Volkswagen PASSAT 2013 Manual page 236

The system must be recalibrated using the SET button whenever you remove and remount or
change any wheel or tire on the vehicle, even if the reinstalled or replacement wheels and tires are
identical to those that were removed and even if the tire pressure does not change.
If you have to adjust the tire pressure on a warm tire, fill the tire with 2.0 - 4.35 psi (20 - 30 kPa)
more than the pressure specified on the tire pressure label inside the fuel filler flap inside the driver
door.
If the TPMS determines that the air pressure in at least one tire is too low, carefully check the
pressure in all 4 tires with an accurate tire pressure gauge. Low tire pressure usually cannot be
determined by looking at the tire. This is especially true of low-profile tires.
If you have work done on your wheels or tires, inform the workshop that the vehicle is equipped
with a Tire Pressure Monitoring System (TPMS).
New tires may expand slightly the first time they are driven at high speeds, which can trigger a
tire pressure warning. Remember that tire pressure can only be properly measured when the tire is
"cold".
Only replace old tires with tires that have been approved by Volkswagen for your vehicle type.
Indicator light (telltale)
Please first read and note the introductory information and heed the WARNINGS
page 282.
Possible cause or meaning ⇒
Lights up
Lights up and a chime sounds once:
The inflation pressure of one or more
tires is significantly lower than the
benchmark pressure set by the driver -
or a tire has structural damage.
Depending on vehicle equipment, the
message Please check tires! will
appear in the instrument cluster display.
Possible cause or meaning ⇒
Flashes
Flashes for about 70 seconds and then
stays on:
System malfunction.
Proper response
Stop safely as soon as possible!
Reduce speed immediately! Avoid fast
cornering and hard braking!
Check the condition and inflation pressure
of all tires. Have damaged tires replaced.
Proper response
Check and, if necessary, adjust the tire
inflation pressure in all 4 tires. If the tire
pressure is correct, switch the ignition off
and back on. If the indicator light flashes
again and then stays on or does not go out
after checking and adjusting the air
pressure in all 4 tires and pressing the SET
button, take the vehicle to an authorized
Volkswagen dealer or an authorized
Volkswagen Service Facility. Have the
system checked.
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